Re: [PATCH v8 00/70] Introducing the Maple Tree

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On Wed, Apr 27, 2022 at 04:51:50PM +0000, Liam Howlett wrote:
> Thanks.  This is indeed an issue with 0d43186b36c1 (mm/mlock: use vma
> iterator and instead of vma linked list)                                                 
> 
> Andrew, Please include this patch as a fix.

Even with the patch applied, there are still thousands of memory leaks
reports from kmemleak after booting.

unreferenced object 0xffff400259bd6d00 (size 256):
  comm "multipathd", pid 2577, jiffies 4294915929 (age 2370.384s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
     slab_post_alloc_hook
     kmem_cache_alloc_bulk
     mas_alloc_nodes
     mt_alloc_bulk at lib/maple_tree.c:151
     (inlined by) mas_alloc_nodes at lib/maple_tree.c:1244
     mas_preallocate
     __vma_adjust
     shift_arg_pages
     setup_arg_pages
     load_elf_binary
     search_binary_handler
     exec_binprm
     bprm_execve
     do_execveat_common.isra.0
     __arm64_sys_execve
     invoke_syscall
     el0_svc_common.constprop.0
     do_el0_svc




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